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Additional
equation of state
English Wikipedia - The Free Encyclopedia
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Equation of state
In
physics
and
thermodynamics
, an
equation of state
is a relation between
state variable
s. More specifically, an equation of state is a
thermodynamic equation
describing the state of matter under a given set of physical conditions. It is a
constitutive equation
which provides a mathematical relationship between two or more
state functions
associated with the matter, such as its
temperature
,
pressure
,
volume
, or
internal energy
. Equations of state are useful in describing the properties of
fluids
, mixtures of fluids,
solids
, and even the interior of
stars
.
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